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Developer Tools · head to head

Pants Build vs Semperis

Pants Build logo

Pants Build

Developer Tools

Fast, scalable build system with intelligent defaults for Python and more

From
Free
Free plan
Yes
Full reviewWebsite
Semperis logo

Semperis

Cybersecurity

Identity threat detection and Active Directory forest recovery for AD, Entra ID and Okta, from a privately held US vendor.

From
On request
Free plan
No
Full reviewWebsite

The short version

  • Only Pants Build has a free tier, so it costs nothing to try first.
  • Each has a real cost: Pants Build smaller community compared to Bazel with fewer third-party tool integrations; Semperis scope is limited to Active Directory, Entra ID and Okta, so an organisation whose critical identity lives elsewhere gets little from it, and the recovery value declines in direct proportion to how much has already moved off on-premises AD.
  • They diverge on capability: Pants Build covers Intelligent defaults, Semperis covers Active Directory Forest Recovery.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Pants Build and Semperis actually diverge.

Attributes where Pants Build and Semperis differ
AttributePants BuildSemperis
Starting priceFreeOn request
Pricing modelopen-sourcequote
Free tierYesNo
PlatformsLinux, macOS, WindowsWeb
CategoryDeveloper ToolsCybersecurity

Identical on both: user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Pants Build

  • Intelligent defaults
  • Python-first design
  • Multiple dependency resolves
  • File-level operations
  • Git integration
  • Tool integrations
  • Python 3 plugin API

Only in Semperis

  • Active Directory Forest Recovery
  • Malware-free restore
  • Replication-stream monitoring
  • Automated rollback
  • Attack indicator scoring
  • Entra ID and Okta coverage
  • Purple Knight
  • Forest Druid

What people use each for

The jobs each tool is most often brought in to do.

Pants Build

  • Python-heavy monorepos with complex interdependenciesnot Semperis
  • Multi-language projects mixing Python, Go, and JVM languagesnot Semperis
  • Teams seeking minimal build configuration overheadnot Semperis
  • Organizations implementing Git-aware test selectionnot Semperis

Semperis

  • An organisation that cannot answer an auditor or insurer asking how long it would take to rebuild Active Directory after a destructive attacknot Pants Build
  • Post-incident recovery where domain controllers are compromised and restoring from system-state backup would reintroduce the attacker's footholdnot Pants Build
  • Continuous detection of privileged group changes and directory-level tampering that domain controller security logs missnot Pants Build
  • Hybrid estates where AD, Entra ID and Okta all matter and no single tool currently shows changes across the threenot Pants Build

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Pants Build

  • Smaller community compared to Bazel with fewer third-party tool integrations
  • Python plugin API steeper learning curve for custom build rules
  • Less mature ecosystem for non-Python languages
  • Fewer integration examples for enterprise CI/CD platforms

Semperis

  • Scope is limited to Active Directory, Entra ID and Okta, so an organisation whose critical identity lives elsewhere gets little from it, and the recovery value declines in direct proportion to how much has already moved off on-premises AD.
  • The licence buys tooling, not a proven runbook: forest recovery is only worth what your last rehearsal demonstrated, and a plan that has never been executed end to end in a lab is an untested assumption regardless of what was purchased.
  • It overlaps with backup and directory management products from Quest, Veeam, Commvault and others, so the buyer must argue internally why a dedicated product is needed alongside a backup contract that already claims to protect Active Directory.
  • Running Directory Services Protector well requires someone who understands AD internals, replication metadata and Tier 0 attack paths, and without that person the alerts on privileged changes are either ignored or auto-reverted in ways that break legitimate administration.
  • Licensing is driven by identity object counts, so directories carrying years of stale user accounts and service principals pay for objects that should have been deleted, and the cleanup project that would reduce the bill is the one nobody has time for.

Pricing, plan by plan

Pants Build

Free

No published plan breakdown. See the Pants Build review.

Semperis

On request

No published plan breakdown. See the Semperis review.

Which should you pick?

Choose Pants Build if

  • You need intelligent defaults.
  • You want to start without paying.
  • You work on Linux, macOS, Windows.
  • You also want python-first design.
Pants Build review

Choose Semperis if

  • You need active directory forest recovery.
  • You also want malware-free restore.
Semperis review

Questions people ask

Is Pants Build or Semperis better?
Neither clearly leads. Pants Build starts at Free and Semperis at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Pants Build or Semperis?
Pants Build has a free tier; the other does not. Paid plans start at Free for Pants Build and On request for Semperis.
Does Pants Build or Semperis run on more platforms?
Pants Build runs on Linux, macOS, Windows. Semperis runs on Web.
Can I use Pants Build for free?
Yes. Pants Build has a free tier, so you can try it without paying. Semperis starts at On request.
What is Pants Build best used for?
Pants Build is most often used for python-heavy monorepos with complex interdependencies, multi-language projects mixing python, go, and jvm languages, teams seeking minimal build configuration overhead, organizations implementing git-aware test selection. Of those, python-heavy monorepos with complex interdependencies and multi-language projects mixing python, go, and jvm languages are not what Semperis is typically brought in for.
What can Pants Build do that Semperis cannot?
Pants Build covers Intelligent defaults, Python-first design, Multiple dependency resolves, File-level operations. Semperis covers Active Directory Forest Recovery, Malware-free restore, Replication-stream monitoring, Automated rollback.

Answered from the vendors’ own pages

Pants Build: What languages does Pants support?

Pants supports Python as a first-class citizen, with production-ready support for Go, Java, Scala, Kotlin, Shell scripts, and Docker.

Source
Semperis: Does this replace my backups?

No. It replaces the Active Directory recovery procedure specifically. You still need backups for everything else, and the point of Semperis is that a generic system-state backup of a domain controller is a poor way to recover a forest because it restores the operating system along with whatever compromised it.

Pants Build: Do I need to write BUILD files with Pants?

Pants uses static analysis to infer dependencies and project structure, minimizing required BUILD file configuration compared to other build systems.

Source
Semperis: Is it useful if we are cloud-only on Entra ID?

Partly. Directory Services Protector covers Entra ID and Okta for change tracking and posture, but the forest recovery product, which is the strongest reason to buy, applies to on-premises Active Directory. A genuinely cloud-only organisation should weigh it against Microsoft's own tooling.

Pants Build: How does Pants handle complex dependency scenarios?

Pants provides file-level dependency tracking, multiple dependency resolves with lockfiles, and sophisticated dependency analysis that works correctly even with circular or complex dependency graphs.

Source
Semperis: Are Purple Knight and Forest Druid really free?

Yes, both are free downloads with no licence requirement, and they are widely used by organisations that are not Semperis customers. They are also, transparently, the top of the sales funnel.

Semperis: How long does forest recovery actually take?

The honest answer is whatever your rehearsal took. The vendor's case is hours instead of days, and automation genuinely removes most manual steps, but the number that matters for your board is the one from a test in your own environment.

Semperis: Does it require agents on domain controllers?

It collects directory changes from the AD replication stream, which is what lets it see changes that bypass the security log. Deployment details vary by product and version, so confirm the exact architecture against your domain controller change-control rules.

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